/*
 * Zed Attack Proxy (ZAP) and its related class files.
 *
 * ZAP is an HTTP/HTTPS proxy for assessing web application security.
 *
 * Copyright 2014 The ZAP Development Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.zaproxy.zap.extension.alert;

import org.zaproxy.zap.ZAP;
import org.zaproxy.zap.eventBus.EventPublisher;

public class AlertEventPublisher implements EventPublisher {

    private static AlertEventPublisher publisher = null;
    public static final String ALERT_ADDED_EVENT = "alert.added";
    public static final String ALERT_CHANGED_EVENT = "alert.changed";
    public static final String ALERT_REMOVED_EVENT = "alert.removed";
    public static final String ALL_ALERTS_REMOVED_EVENT = "alert.all.removed";

    public static final String ALERT_ID = "alertId";

    /**
     * Indicates the {@code HistoryReference} ID of the alert.
     *
     * <p>The field is available in the events {@link #ALERT_ADDED_EVENT}, {@link
     * #ALERT_CHANGED_EVENT} and {@link #ALERT_REMOVED_EVENT}.
     *
     * @since 2.5.0
     */
    public static final String HISTORY_REFERENCE_ID = "historyId";

    public static final String NAME = "name";
    public static final String URI = "uri";
    public static final String PARAM = "param";
    public static final String RISK = "risk";
    public static final String RISK_STRING = "riskString";
    public static final String CONFIDENCE = "confidence";
    public static final String CONFIDENCE_STRING = "confidenceString";
    public static final String SOURCE = "source";

    @Override
    public String getPublisherName() {
        return AlertEventPublisher.class.getCanonicalName();
    }

    public static synchronized AlertEventPublisher getPublisher() {
        if (publisher == null) {
            publisher = new AlertEventPublisher();
            ZAP.getEventBus()
                    .registerPublisher(
                            publisher,
                            ALERT_ADDED_EVENT,
                            ALERT_CHANGED_EVENT,
                            ALERT_REMOVED_EVENT,
                            ALL_ALERTS_REMOVED_EVENT);
        }
        return publisher;
    }
}
